Has anybody had success adding line filters, (small cap's) to radio chassis from the "50's" to help with noise? Some of these have a "floating ground" power supply. What size(mfd's) can I safly use?

Mainly RF from flouresent sorces, etc. Thanks!!

Hi,
You can try some .01uf first to see if they help. If not, step up to a .1uf. Make sure the working voltage rating is in excess of 180 volts. Inside the radio, you may want to try and match the style inside fo the radio as close as possible, but mylars may be best performers.

If the plug ends are not molded, but rather are the replacement types, you may want to get the polarizing type of plug (one wide, and one narrow blade), and install your caps in such a way that when the radio is off, the cap itself is on the same side of the switch as the radio- this keeps the capacitor from seeing the full house current when the radio is off. The polarized plug keeps the switch on the "high side" of the house current.

You should also ground the reflectors of the lights themselves, and you may want to add the same size caps as near to the ballast as possible, and in a spot where if the cap should fail- it will not start a fire.

Be aware also that you may not be able to eliminate all of the interference.

: Has anybody had success adding line filters, (small cap's) to radio chassis from the "50's" to help with noise? Some of these have a "floating ground" power supply. What size(mfd's) can I safly use?

: Mainly RF from flouresent sorces, etc. Thanks!!

: Hi,
: You can try some .01uf first to see if they help. If not, step up to a .1uf. Make sure the working voltage rating is in excess of 180 volts. Inside the radio, you may want to try and match the style inside fo the radio as close as possible, but mylars may be best performers.

: If the plug ends are not molded, but rather are the replacement types, you may want to get the polarizing type of plug (one wide, and one narrow blade), and install your caps in such a way that when the radio is off, the cap itself is on the same side of the switch as the radio- this keeps the capacitor from seeing the full house current when the radio is off. The polarized plug keeps the switch on the "high side" of the house current.

: You should also ground the reflectors of the lights themselves, and you may want to add the same size caps as near to the ballast as possible, and in a spot where if the cap should fail- it will not start a fire.

: Be aware also that you may not be able to eliminate all of the interference.

: : Has anybody had success adding line filters, (small cap's) to radio chassis from the "50's" to help with noise? Some of these have a "floating ground" power supply. What size(mfd's) can I safly use?

: : Mainly RF from flouresent sorces, etc. Thanks!!

OK, I will give it a try! Thanks, dennis